Power Electronics, Electric Motor Drives, MACAUTO

Dr. Yin Ye
Assistant Professor EE Dept, San Francisco State University

Cerent Engineering Science Complex, Salazar Hall 2009A
4:00 PM

Abstract – This talk will mainly focus on challenges and enabling solutions of electric motor drives in electric vehicles (EVs), hybrid electric vehicles (HEVs) and Plug-in hybrid electric vehicles (PHEVs). Switched reluctance machine has recently emerged as a possible cost-effective propulsion solution in EVs, HEVs and PHEVs due to its simple and rugged structure, its extendedspeed constant-power range, fault-tolerant capabilities and lack of permanent magnets in its configuration. However, it suffers from high torque ripples and high acoustic noise due to strong nonlinearity of the machine, which impedes its penetration to electrified transportation. In this talk, two novel control methods for torque ripple reduction in switched reluctance machine will be discussed, both of which are validated to reduce the torque ripples significantly over the wide speed range in both linear magnetic and saturated magnetic region. The effect of mutual flux on rotor position estimation of switched reluctance machine is also investigated and two methods will be introduced to eliminate the mutual flux effect on rotor position estimation of switched reluctance machines without a prior knowledge of the mutual flux profiles. In addition, a fast electro-thermal model for the online and offline junction temperature estimation of power modules in EVs, HEVs and PHEVs will be introduced, which can provide fast and accurate temperature estimation for temperate protection and lifetime evaluation.

Dr. Jin Ye is currently an assistant professor of electrical engineering at San Francisco State University, San Francisco, CA, United States. From 2014 to 2015, she worked as a postdoctoral research associate at the McMaster Institute for Automotive Research and Technology (MacAUTO), McMaster University, Hamilton, Ontario, Canada. She received the B.S. and M.S. degrees in electrical engineering from Xi’an Jiaotong University, Xi’an, China, in 2008 and 2011, respectively. She also received her Ph.D. degree in electrical engineering from McMaster University in 2014. She has authored/coauthored more than 30 top journal and conference papers, and has five US/Canadian patents pending. She is also the recipient/co-recipient of several awards including Development of Research and Creativity Award (2015), and Chrysler Innovation Award (2014). She is an associate editor for IEEE Transactions on Transportation Electrification and serves in technical committees for several conferences. Her main research areas include power electronics, electric motor drives, renewable energy conversion and electrified transportation.